STMicroelectronics TS556
The TS556 is a dual CMOS timer which offers a very low consumption: I(cIccc(T(TYYPP))NTES555566(a=) 220 µA at = 6 mA), VCC = 5 V versus and high frequency: (f(max.) TS556 = 2.7 MHz versus f(max.) NE556(a) = 0.1 MHz) In both monostable and astable modes, timing remains very accurate. The TS556 provides reduced supply current spikes during output transitions, which enables the use of lower decoupling capacitors compared to those required by bipolar NE556(a).DESCRIPTION
Due to the high input impedance (1012 Ω), timing capacitors can also be minimized.FEATURES
● Very low power consumption: – 220 µA typ at VCC = 5 V – 180 µA typ at VCC = 3 V● High maximum astable frequency 2.7 MHz
● Pin-to-pin and functionally compatible with bipolar NE556(a)
● Wide voltage range: 2 V to 16 V
● Supply current spikes reduced during output transitions
● High input impedance: 1012 Ω
● Output compatible with TTL, CMOS and logic MOS a. Terminated product January 2025 This is information on a product in full production. DocID4078 Rev 4 1/19 Contents Contents TS556 1 Absolute maximum ratings and operating conditions . . . . . . . . . . . . . 3 2 Schematic diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 3 Electrical characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6 4 Application information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13 4.1 Monostable operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .